I am having the same problem, with the background being transparent within the sticky header, the navigation bar becomes extremely different to see on the page because it blends into the background.
I have found a good example of this functionality working well on the site below:
http://janrain.com/product/social-login/
How is the implementation of the time shifts coming along? Is this now complete and available on the Basic Package?
This functionality is a necessity for my restaurant so it would be a great addition to the Basic Package.
